Gas-burner.



L. MBLLINKOFF.

(ms BURNER,

APPLIOATION FILED IBB. 14,1910.

Patented Aug. 23, 1910.

LOUIS MELLINKOFF, OF PITTSBURG, PENNSYLVANIA.

GAS-BURNER.

Specification of Letters Patent. I Patented Aug. 23, 1910.

Application filed February 14, 1910. Serial No. 543,758..

7 To all whom it may concern:

Be it known that I, LOUIS MELLINxorr, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented cer tain new and useful Improvements in Gas- Burners, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to an improvement in gas burners, particularly for industrial uses as for furnishing fuel to furnaces, fireplaces of boilers, etc., and is particularly designed to provide a device of this character which may be used in restricted spaces to furnlsh a copious supply of gas and air in perfect combustion, at any desired angle.

The device consists of an integral casting having a tubular body portion terminating in a nozzle of suitable form and an enlarged bell-shaped mixer chamber provided with a centrally arranged supply or jet nipple mounted in integral supporting or spider arms beyond the mixer chamber proper.

The invention is illustrated in the accompanying drawings in which:

Figure l is a view of the complete device in side elevation. Fig. 2 is a central vertical sectional view of the burner. Fig. 3 is an under end view of the burner shown in Fig. 2. Fig. 4 is a detail sectional View of the nozzle showing it straight. Fig. 5 is a similar detail showing the nozzle deflected more than in Fig. 2. Fig. 6 is a detail view showing the nozzle composed of a plurality of connected sections. Fig. 7 is an end View of the construction shown in Fig. 6.

The body portion of the burner is tubular as at 2 of any desired length, terminating at one end in the delivery nozzle 3 preferably reinforced as at 4- In the preferred form the nozzle is deflected by curving the generally tubular body to any desired degree as in the principal figures of the drawings, although it may be made straight as indicated at 3 in Fig. 4.

The object in curving the nozzle longitudinally is to deflect the jet of mixed a1r and gas to the desired angle, whereby the burner may be used by mounting or connecting it vertically as shown in any contracted space, the angle of the flame being directed at will, depending on the shape of the outlet nozzle.

At the other end the body of the burner is outwardly flared, as at 5, providing the annularly flaring interior wall 6 and by a compound curve the annular wall is then deflected inwardly in hell form, as at 7, with the corresponding inwardly deflected interior 8 terminating at the front edge 9 of greatest diameter. Extending beyond said edge 9 are a plurality, preferably four, of spider or spanner arms 10 curved forwardly considerably beyond the end of the burner tube proper and the mixing chamber thereof, said arms being comparatively narrow, providing the intervening long wide intervening 7:

air spaces 11. Said arms are brought together centrally, providing'an integral bearing 12 in which is mounted the supply jet or nozzle 13 connected by union 14: with the usual supply pipe 15 which may have any. suitable controlling valve.

The nozzle 13 is perforated to the diameter best adapted to the desired supply and pressure of the gas, and as will be observed, its inner end is located considerably beyond the inwardly tapering opening of the mixer.

The jet of gas, being directed centrally of the interior space, and expanding in the form of an inverted cone, strikes against the retaining wall 8, at the same time inducing an inward flow of a relatively large volume of air, the mixture passing inwardly along the tapering Wall 86 to the main inner contracted tube and finally out of the supply nozzle. The action of the annular compound curved w'alls 86 is to not only gradually contract the mixture as it enters but also to facilitate its passage, by reason of the long steep taper. The mixture, impinging against the inner walls 8-6 is constantly deflected inwardly, creating a series of cross currents as indicated in Fig. 2 so that the gas when it emerges from the nozzle is thoroughly commingled and with an ample proportion of air. The resulting combustion is practically perfect and I have found in practice that the flame from the nozzle at any pressure is a blue flame, burning close to the nozzle and with perfect combustion. This is due to the distance of the gas supply nozzle 13 in front of the mixing chamber, the ample air supply, the smooth inwardly and outwardly rounded annular walls, and the full open area of the burner throughout its'length.

The outlet or nozzle terminal 3 may be made integral and of the shape to suit the conditions of use as stated.

If desired, the curvature may be varied by adding or subtracting one or more segmental ring sections 16, secured by screws 17 as in Fig. 6 and with either construction the walls are preferably reinforced as shown, for resisting the heat and insuring against warpage.

The burner as thus made is very simple and cheap in construction, and highly efficient in use, for the reasons above set forth.

What I claim is 1. A burner consisting of a tubular casting having a laterally curved thickened delivery terminal, a cylindrical body portion, and an enlarged bell-shaped inlet terminal flaring downwardly and merging upwardly into the wall of the cylindrical body portion, said inlet terminal having a transverse annular edge, a series of arms extending beyond said terminal edge a distance approximating its inner diameter and forming a central bearing, and a gas supply nozzle mounted in said bearing, substantially as set forth.

2. A burner consisting of an integral tubular casting having a bell-sha-ped inlet flaring downwardly at its terminal, said terminal having a transverse annular edge, a series of integral arms extending beyond said terminal edge a distance approximating its inner diameter and forming a central hearing, and a gas supply nozzle mounted in said bearing, the tubular casting having a laterally curved delivery terminal, substantially as set forth.

3. A burner of the class described consisting of a casting having an outlet terminal composed of one or more segmental shaped rings built upon the end surface of the main burner for the purpose set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

LOUIS MELLINKOFF.

Witnesses:

O. M. CLARKE, CHAS. S. LEPLEY. 

